Sign up for as many IT related job websites as you can, pass your driving test, don't get into debt or get a criminal record, don't just stick to hardware, learn Windows XP/Vista inside out, read up on Microsoft Exchange/Lotus Notes.
Linux/Unix and Cisco knowledge are useful.
Get your CV out there.
IT job websites - jobserve.com , jobsite.co.uk, also register with agencies - reed.co.uk, and consider contract work, any thing to get a foot in the door.
Contact large telecommunications companies, e.g BT
Persevere.
Good Luck